ExtendedMove class and support

The ExtendedMove class can optionally replace the standard Move class to
allow the passing of absolute position and rotation information from the
client's input device to the server.  It is enabled by changing
$TORQUE_EXTENDED_MOVE to true in buildFiles/config/project.conf and
re-running the project generator.
Merge pull request #221 from DavidWyand-GG/ExtendedMove

ExtendedMove class and support